1. Temporal and spatial coverage

Due to biological and environmental data availability, the temporal coverage is from 2007 to 2016.
91 sampled lakes and 274 sampled stream stations were considered.

 

2. Environmental variables

Lake
Stream
variable mean sd median min max mean sd median min max
dbo (mg/L) 1.5 0.9 1.3 0.5 5.5 1.6 0.6 1.5 0.6 4.9
temperature (°C) 13.9 1.9 13.6 9.6 18.5 11.3 1.9 11.3 1.8 17.8

 

3. Food web metrics

Lake
Stream
metric mean sd median min max mean sd median min max
connectance 0.1 0.0 0.1 0.1 0.2 0.2 0.0 0.2 0.1 0.2
max trophic level 4.0 0.2 4.0 3.1 4.5 3.8 0.2 3.8 2.9 4.4
mean trophic level 3.3 0.2 3.3 2.2 4.0 3.5 0.3 3.5 2.7 4.2
number of nodes 40.8 10.2 39.0 21.0 67.0 31.4 14.8 30.0 8.0 92.0

 

4. Environmental variables vs. Food web metrics